/Engine/Source/Editor/CurveEditor/Public/Tree/CurveEditorTree.h
Sets a predicate which will be used to sort tree items after they're been marked as needing sort.
void SetSortPredicate ( [FTreeItemSortPredicate](API\Editor\CurveEditor\Tree\FCurveEditorTree\FTreeItemSortPredicate) InSortPredicate )